// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


// Adapted from Apache Arrow.

#pragma once

#include <cstdint>

#include <pollux/dwio/parquet/writer/arrow/platform.h>
#include <pollux/dwio/parquet/writer/arrow/types.h>
#include <pollux/dwio/parquet/writer/arrow/tests/Hasher.h>

namespace kumo::pollux::parquet::arrow {

class PARQUET_EXPORT XxHasher : public Hasher {
 public:
  uint64_t Hash(int32_t value) const override;
  uint64_t Hash(int64_t value) const override;
  uint64_t Hash(float value) const override;
  uint64_t Hash(double value) const override;
  uint64_t Hash(const Int96* value) const override;
  uint64_t Hash(const ByteArray* value) const override;
  uint64_t Hash(const FLBA* val, uint32_t len) const override;

  void Hashes(const int32_t* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(const int64_t* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(const float* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(const double* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(const Int96* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(const ByteArray* values, int num_values, uint64_t* hashes)
      const override;
  void Hashes(
      const FLBA* values,
      uint32_t type_len,
      int num_values,
      uint64_t* hashes) const override;

  static constexpr int kParquetBloomXxHashSeed = 0;
};

} // namespace kumo::pollux::parquet::arrow
